The statistics of disease prove cancers of other organs to be twice as frequent, among females, as cancer of the stomach is among males; and an eminent etiologist places narcotics among the least proved causes of this disease.    From Wordnik.com.  [The Atlantic Monthly, Volume 06, No. 34, August, 1860] Reference

Dr. Lisa Bernstein, the etiologist (that's someone who studies the cause of diseases) wrote in an email to Senator Amy Klobuchar of Minnesota.    From Wordnik.com.  [The Full Feed from HuffingtonPost.com] Reference

It's also a good way to build and retain their audience, since the endless array of health information on the web makes everyone an amateur etiologist.    From Wordnik.com. Reference

Whether it results from disease of the hock, of an ulcerative character; whether it springs from a malformation; whether it is a shortening of the ligaments, a chronic inflammation of the sciatic nerve, or a disease of the spinal cord; whether it is purely a muscular or purely a nervous lesion, or a compound of both -- it still continues, if an etiologist is bound to possess universal knowledge within the scope of his special studies, to be his reproach and his puzzle.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference